And what he found out, is Michigan has a lot more to offer on and off the field.
"The visit was pretty good," Mack said. "I was actually pretty impressed. The whole thing was planned out with me actually getting to meet a couple surgeons. That's actually a major I want to get into when I get into college. So I got to ask them a few questions, which was pretty awesome. I got to meet with the student advisor and meet with a couple coaches. I got to sit down with Coach Harbaugh, which was pretty awesome."
That's when, of course, his visit with the Wolverines headman took a new twist for the better.
"Sitting down with Coach Harbaugh was cool," said the Fort Wayne (Ind.) Bishop Luers standout. "The message he first came with was teach me the proper way to do a three-point stance. He went on this whole rant about coaching and was like 'get down in a three-point stance.' I guess my stance was the best thing ever [laughing]. His message was pretty cool talking about the 'Michigan Man' and about what their brand is and what it's like."
With another visit to Michigan now in the books, Mack was adamant that U-M has become a contender in his recruitment.
"This visit really helped a lot," Mack said. "This is the second time I was able to get down and speak with the coaches and build that relationship. It definitely ranks them a lot higher in my eyes.
"Seeing how beneficial the education and the coaches are at Michigan. Knowing that the next few years they won't be losing like they have been. Success is going to come and it's definitely going to come from hard work. They have definitely moved up and are team to think about."
Mack said he doesn't have a top school at the moment and still plans to announce his commitment on June 7.